Surgical drain tube



FIG. 1 is a perspective view of a surgical drain tube showing my new design, the side opposite being identical;

FIG. 2 is an end view thereof;

FIG. 3 is a perspective view of an alternate embodiment of FIG. 1;

FIG. 4 is an end view thereof;

FIG. 5 is a perspective view of another alternate embodiment of FIG. 1; and

FIG. 6 is an end view thereof. 

The ornamental design for a surgical drain tube, as shown and described. 